President Obama scolded Congressional Republicans for putting off a budget deal in his press conference on Wednesday. "Malia and Sasha generally finish their homework a day ahead of time. Malia's 13, Sasha's 10. It is impressive. They don't wait until the night before, they're not pulling all-nighters,” Obama said (technically Malia turns 13 on July 4). But many great minds put off their work until the last minute. From Bill Clinton to Leonardo da Vinci, click through to see history’s biggest procrastinators.